AD7192_CONF_CHOP
st->conf &= ~AD7192_CONF_CHOP;
chop_en = FIELD_GET(AD7192_CONF_CHOP, st->conf);
st->conf |= AD7192_CONF_CHOP;
st->conf |= AD7192_CONF_CHOP;
st->conf &= ~AD7192_CONF_CHOP;
st->conf &= ~AD7192_CONF_CHOP;
if (FIELD_GET(AD7192_CONF_CHOP, st->conf))